Angular Momentum: A person sits on a freely spinning lab stool that has no friction in its axle. When this person extends her arms,
A. her moment of inertia decreases and her angular speed increases.
B. her moment of inertia decreases and her angular speed decreases.
C. her moment of inertia increases and her angular speed increases.
D. her moment of inertia increases and her angular speed decreases.
E. her moment of inertia increases and her angular speed remains the same.
Answer: D
You might also like to view...
The average value of 
t for a complete cycle is
A. 1. B. 0. C. 0.707. D. 0.500. E. 0.250.
A column that extends from sea level to the top of the atmosphere contains a certain mass of air. If the column instead contained the same mass of water, its height would be about
A) 3/4 meter. B) 10.3 meters. C) 5.6 kilometers. D) none of the above
The tallest column of water able to be supported by using atmospheric pressure is
a. about 10 m. b. about 1 m. c. about 100 m. d. about 1 cm.
The average size of a white dwarf is about the same size as the Earth
a. True b. False Indicate whether the statement is true or false